Too late to train?

I have a 10 month old GSP who I hope/plan on making my upland and waterfowl dog next season. I started working with him around 4 months and trained him for two or so months. Unfortunately I became swamped with work and projects. Before I stopped training him I had him "Woah" trained on and off the table, force fetch trained with dummies and was starting retro-train to whistle commands. He seems to have digressed in obedience since I stopped training him, and I plan on continuing my training this month.

I was wondering if it was too late to continue training; I understand I may have to start from the beginning and build back up the confidence and attention. My main concern is if the bad habits he currently has, can they be broken without using an E-Collar or negative response training?

I have a one year old GSP, who I trained for upland birds and waterfowl. I taught her the basics, sit, stay, and come, threw some bumpers wrapped in feathers her way, and shot around her. She's been doing good this season, thus far. She isn't consistent with holding points, fetching, or even staying on a track, but none the less she is hunting and getting my birds in the freezer. GSP's are natural hunters with great drive. So as long as your dog listens I say hit the woods and hunt!

Def not to late! I'm no expert but I have a gsp and had the same thing happen. I was training him young introduced him to birds and simple commands an just got swamped at work. I finally got back to him around 9 months and he's about 11 months now and he is just doing awesome! All I did was just as I would of done as if he was 4 or 5 months old.